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(No Model.)

B. N. GILFILLAN.

SASH FASTENER.

No. 601,750. Patented Apr. 5, 1898.

L MW M w m HH/ w 7 N @W [m w UNITED STAT S A PATENT I Fries.

ESSINGTON N. GILFILLAN, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO H. A. WHEELER, OF SAME PLACE.

SASH-FASTEN ER.

SPECIFICATION forming part of Letters Patent No. eo1,750, dated April 5, 1898. I Application filed September 3,1896. Serial No. 604,764. (No model.)

To all whom it may concern.-

Be it known that I, ESSIN GTON N. GILFIL- LAN, a citizen of the United States, residing at Chicago, in the county of Cook and-State of Illinois, have invented certain new and useful Improvements in Sash Holders or Fasteners, of which the following is a full, clear, and exact specification.

My invention relates more particularly to improvements in devices for holding car windows or sashes at any desired degree of opening; and it has for its object to provide improved and simple means which shall be capable of being unlocked by the act of attempting to raise the sash.

With these ends in view my invention consists in certain features of novelty in the construction, combination, and arrangement of parts by which the said object and certain other objects hereinafter appearing are attained, all as fully explained with reference to the accompanying drawings and more particularly pointed out in the claims.

' taken on the line 3 3, Fig. 2.

In the said drawings, Figure 1 is a general view of a car-window provided with my improvements. Fig. 2 is a vertical transverse section 'of the lowerpart of the sash, drawn on a larger scale, the section being taken on the line 2 2, Fig. 3. Fig. 3 is a horizontal section Fig. 4 is an edge View of a part of the sash having myimprovements; and Fig. 51s a detail view of the block carrying the spring-dog hereinafter described, the same being drawn on a smaller scale.

1 represents an ordinary car-window sash whose lower horizontal frame member 2 is mortised in its under side from its outerend or edge inward, as shown at 3. In this mortise or recess 3 is located a horizontal spring 4, whose outer end is turned at an angle, as shown at 5, Fig. 3, and projects from the mor- 4 tise 3 through arecess or opening 6 in the side of the member 2 and is'again turned substantially parallel with its main portion, so as to form a locking-dog 7, the dog 7 being proj ected outwardly beyond the vertical plane of the member 2, so as to engage with the guidestrip or bead 8 and by pressing normally thereagainst hold the sash at the desired elevation. This locking-dog 7 has its end rounded, as shown more clearly in Fig. 4, and the inner face of the guide-strip or bead 8 is provided with a number of notches or corrugations 9, which are approximately complementary in shape to the outer surface of the dog 7, which engages in them, as will be understood, and thus insures the sash from being jostled downward by the motion of the car. 1

When itis desired to raise or lower the sash, the dog 7 is pressed inward, so as to disengage with the corrugations 9, and this may be done advantageously by means of afinger-lever 10, which is pivoted to the sash and provided with a nose-piece 11, adapted to come against the spring portion 4 of the locking-dog when the lever 10 is raised by the friction thereunder in the act of raising the sash. This lever 10 is mounted on a plate 12, secured to the member 2 and having a pair of ears l3 projecting into a recessin the member 2, as clearly shown in Figs. 2 and 3, and having a pivot-pin 14, which passes through and pivots the lever 10.

In order that the lever 10 may be caused to deflect the spring and release the dog 7 when it is desired to lower the sash, I locate athumbpiece 15 immediately above the lever 10, as shown in Figs. 2 and 4, and which is'preferably formed on the plate 12, so that by placing the thumb upon the piece 15 and the finger under the lever 10 and pressing downward, while at the same time pinching these two parts toward one another, the sash will in Fig. 5, so as to leave room within the mortise 3 for the deflection of the spring 4. This block is also mortised where the end of the spring 4 is secured to it, so that the surface of such end of the spring and of the block will be flush. The block 16 thus provided with the springdog4 7 is jammed into the recess or mortise 3 in the bottom corner of the sash member 2 and accurately closes the same.

As shown in Fig. 4, the rounded end of the locking-dog 7 has its ends or upper and lower edges flush with the face of the sash member 2, so that, if necessary, the dog 7 may be deflected into the opening 6 by the application of sufficient power to the thumb-piece 15, the apexes of the corrugations 9 being rounded, so as to avoid positive engagement with the edges of the dog 7 and to serve to press the dog into its recess, but at the same time offer sufficient friction or resistance to hold the sash elevated under ordinary circumstances.

The sash-fastener thus described is preferably duplicated at the other end of the sash member 2, so that one of the locking-dogs 7 will engage with each of the guide-strips or heads 8 8, and when two of the devices are thus used the mortise 3 in the bottom of the sash member 2 may be extended throughout the entire length of such member 2, the inner ends of the block 16 abutting together, as shown in Fig, 3.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. A sash-fastener having in combination a sash provided with a recess extending longitudinally of its horizontal frame member, a spring secured in said recess and having an angular bend at its outer end projecting from said sash and having its end turned at an angle to said bend and being rounded from top to bottom, a bead arranged opposite the rounded end of said bend and having corrugations adapted to engage therewith, and means secured to said sash for depressing said spring, substantially as set forth.

2. A sash-fastener having in combination a sash provided with a mortise in its lower edge and having the opening 6 at the end thereof, a bead or guide-strip located opposite said opening 6, a block 16 driven into said mortise, a fiat spring secured to and extending longitudinally of said block and having an angular bend forming a dog, projecting through said opening 6 and engaging with said guide-strip, said block 16 being cut away behind said spring, a lifting-lever pivoted to said sash and having the nose-piece 11 impinging said spring, and a thumb-piece located over said lifting-lever, substantially as set forth.

ESSINGTON N. GILFILLAN.

Vitnesses:

F. A. Hornms, EDNA B. JOHNSON. 

